Greenheck Fan Fiberglass Centrifugal Fan 474051 - Manual (Page 5)

5 Model BCSW-FRP
Bases (Foundation and Isolation)
In order to assure continued alignment, a high
strength, non-shrink epoxy grout is recommended
to provide the desired mechanical properties for
support of the fan. This type of support ensures the
appropriate transmission of static and dynamic loads
to the equipment foundation.
To eliminate vibration and noise from being transferred
to the building, vibration isolators should be used.
The fan is mounted directly on the base and must be
supported for the entire length of the fan base angle.
Isolators are installed between the base and the
foundation.
After the fan and isolators are installed, the entire
assembly must be leveled. Position the level on
the base, not the fan shaft, for proper leveling.
Additionally, the motor and fan shafts must be
level and parallel relative to each other for proper
alignment.
Belt Guards
If the belt guard is not factory mounted, then it must
be field mounted. Brackets and mounting hardware
are the responsibility of the installer. Mounting
bracket locations vary with motor mounting position,
arrangement, and fan type. The bearing supports and
fan structure are used in most instances and when
the motor is not mounted to the fan itself, a bracket
should also be located near it. This information is
intended as only a guide and actual field conditions
may dictate another mounting location for the guard
brackets. Refer to local codes for securing guarding.
Drain Connection
Make sure to either connect the drain or keep it
plugged. Never leave the drain open to drain freely.
The drain line must be installed using either a U-trap
arrangement or an equivalent method (drain leg is
submerged in liquid). To obtain a proper seal, the leg
length must be greater than the system pressure drop.
Ductwork / Stacks
All ductwork and/or stacks must be self-supporting
and independent of the fan. The fan inlet and outlet
are not designed to support the connecting duct or
stack. The use of flexible connectors is recommended
to limit the transmission of stress to the fan. Excessive
pressure applied when bolting a flange connection
may cause damage to the fan housing or flange.
Rotatable Housings
It may be necessary to rotate the scroll of the fan
to achieve a different discharge position than what
was originally supplied. Fiberglass fan model BCSW-
FRP (sizes 6-25; arr. 4 and 10, Class I, II, III, and
IV) has the flexibility to be rotated in the field. This
is accomplished by removing the housing bolts,
rotating the housing to a new discharge position and
reinstalling the bolts.